89777601 has 24 divisors (see below), whose sum is σ = 133436160. Its totient is φ = 58140576.

The previous prime is 89777563. The next prime is 89777609. The reversal of 89777601 is 10677798.

It is a happy number.

It is not a de Polignac number, because 89777601 - 2⁶ = 89777537 is a prime.

It is not an unprimeable number, because it can be changed into a prime (89777609) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 50160 + ... + 51918.

It is an arithmetic number, because the mean of its divisors is an integer number (5559840).

Almost surely, 2^89777601 is an apocalyptic number.

It is an amenable number.

89777601 is a deficient number, since it is larger than the sum of its proper divisors (43658559).

89777601 is a wasteful number, since it uses less digits than its factorization.

89777601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1925 (or 1922 counting only the distinct ones).

The product of its (nonzero) digits is 148176, while the sum is 45.

The square root of 89777601 is about 9475.1042738326. The cubic root of 89777601 is about 447.7710368735.

The spelling of 89777601 in words is "eighty-nine million, seven hundred seventy-seven thousand, six hundred one".